high performance automatics better for high performance cars?

[NutBucket]

Which is similar to a normal MT but what's the replacement cost?

 

[cbrsurfr]

Which is similar to a normal MT but what's the replacement cost?

$610 http://www.ecstuning.com/Search/SiteSearch/DSG/ES2528862/

 

[Squeetard]

The transmission in the 2015 Z06 Vette shifts faster than a DCT.

http://gmauthority.com/blog/2014/01...orvette-z06-shifts-faster-than-a-dual-clutch/

 

[Zenmervolt]

so something can be damaged or destroyed with deliberate effort or severe abuse? i can't say that catches me by surprise.

It's not necessarily "damage" that would occur, you'd just get a bit of grinding from the dog teeth. And if you double-clutched into 3rd at 75 mph probably there'd be no problem at all (though you'd likely be near redline in most cars.)

It's not like Reverse which typically has an actual, physical, block somewhere in the linkage where no amount of force that a human can apply would let you select Reverse over the lock (e.g. my 951 will not go from 5th to Reverse no matter how much force is applied to the gear lever, my family's old Volvo 240 would not go into reverse no matter how much force you applied to the gear lever unless you lifted up on a little ring around the gear lever). A lock-out is designed to absolutely prohibit shifting into a specified gear. The baulk rings just make it hard enough that doing so would require supra-normal pressure on the gear lever and thereby discourage the shift until the cone clutches in the synchro have had time to bring the input shaft to the proper speed.

The baulk rings are not designed to "lock out" gears above certain speeds. They are simply designed to slow down the shift long enough for the cone clutches to do their job. There are times when it may feel like a gear is "locked out" because of the baulk rings functioning, but that should never be relied upon in the same way that an actual "lock out" would be.

ZV

 

[Zenmervolt]

The transmission in the 2015 Z06 Vette shifts faster than a DCT.

http://gmauthority.com/blog/2014/01...orvette-z06-shifts-faster-than-a-dual-clutch/

I am skeptical of this given that they don't actually quote the shift time. DCTs vary in shift time from around 250 milliseconds in older DCTs to as little as 8 milliseconds in the newest VW DSG models.

I would be very surprised to find out that the 8-speed automatic in the 2015 Corvette was managing shifts faster than VW's 8 millisecond times.

(I'm also skeptical of any automotive blogger who is stupid enough to call a 2.73 rear end "taller" than a 2.41 rear end. That's ass-backwards, which should be obvious to anyone with even a wisp of knowledge of cars.)

ZV